The walkthrough has been updated thanks to my lovely boyfriend Phi! check it out here:

https://docs.google.com/document/d/1EkJ-41mzfet4JQ6CyHeO6BOmwq2JMOgw07ELN5n6DGI/edit

As well, I updated the change logs to add in the Marcie breast transformation scene, which I totally forgot to note down for some reason.